阅读说明：本技术 一种外折叠铰链 (External folding hinge ) 是由 邓仕林 于 2021-08-31 设计创作，主要内容包括：一种应用于移动信息终端的外折叠铰链。用于承载柔性显示面板,使铰链在打开和闭合过程中,保护柔性显示面板不受外力的牵拉和挤压。具体涉及这样一种外折叠铰链,第一支撑构件、第一中间连接构件设置于基座的一侧；相对应地,第二支撑构件、第二中间连接构件、第二支撑瓦与联动构件设置于基座的另一侧。第一支撑构件侧连接导轨41、所述第一基座侧连接导轨42是轨迹为圆弧形的导轨；所述第一支撑构件侧连接导轨41和所述第一基座侧连接导轨42相互连结固定；所述中心轴线一82与所述中心轴线二83相互平行并且相互分离开适当距离。(An external folding hinge applied to a mobile information terminal. The hinge is used for bearing the flexible display panel, so that the flexible display panel is protected from being pulled and squeezed by external force in the opening and closing processes of the hinge. In particular to an external folding hinge, a first supporting component and a first middle connecting component are arranged on one side of a base; correspondingly, the second supporting member, the second intermediate connecting member, the second supporting tile and the linkage member are arranged on the other side of the base. The first support member side connection rail 41 and the first base side connection rail 42 are rails having a circular arc-shaped trajectory; the first support member-side connecting rail 41 and the first base-side connecting rail 42 are coupled and fixed to each other; the first central axis 82 and the second central axis 83 are parallel to each other and separated from each other by a proper distance.)

1. An external folding hinge applied to a mobile terminal, comprising:

the base is provided with a base body, a base screen supporting area, a base first guide rail and a base second guide rail;

the first support member is provided with a first support base plate and a first support guide rail;

the first intermediate connecting member is provided with a first supporting member side connecting guide rail and a first base side connecting guide rail;

the second support member is provided with a second support base plate and a second support guide rail;

the second intermediate connecting member is provided with a second supporting member side connecting guide rail and a second base side connecting guide rail;

the supporting layer is used for bearing the flexible display panel; the support layer is attached to the first support substrate, the base support screen area, and the second support substrate.

2. The external folding hinge of claim 1 wherein said base first rail is a rail that tracks in a circular arc; the second guide rail of the base is a guide rail with a circular arc track; the base screen supporting area is a small supporting table; the base support screen area, the base first guide rail and the base second guide rail are fixedly connected with the base body.

3. The external folding hinge of claim 1 wherein said first support member, said first intermediate connecting member are disposed on one side of said base; correspondingly, the second supporting member and the second intermediate connecting member are arranged on the other side of the base.

4. The external folding hinge of claim 1 wherein said first support substrate has a planar surface for carrying a portion of the support layer; the first support guide rail is a guide rail with a circular arc track; the first support base plate and the first support rail are fixedly connected.

5. The external folding hinge of claim 1 wherein said first support member side connecting rail is a rail having a circular arc-shaped trajectory; the first base side connecting guide rail is a guide rail with a circular arc track; the first support member side connecting rail and the first base side connecting rail are fixedly connected to each other.

6. The external folding hinge according to claim 1, wherein a central axis of the circular arc shaped locus of said first support member side connecting rail and a central axis of the circular arc shaped locus of said first base side connecting rail are parallel to each other and separated from each other by a proper distance; the central axis of the circular arc trajectory of the first support member-side connecting guide rail is closer to the first support base plate than the central axis of the circular arc trajectory of the first base-side connecting guide rail; correspondingly, the central axis of the circular arc track of the first base side connecting guide rail is closer to the base supporting screen area than the central axis of the circular arc track of the first supporting member side connecting guide rail.

7. The external folding hinge of claim 1 wherein said first support rail and said first support member side connecting rail are interfittably connected to each other; during the process that the first support member is folded or unfolded relative to the base, the first support rail slides relatively around the common axis line thereof along the first support member side connecting rail.

8. The external folding hinge of claim 1 wherein said first base side connecting rail and said base first rail are interfittably connected to one another; during the folding or unfolding of the first support member relative to the base, the first base-side connecting rail slides relative to each other along the base first rail about its common axis.

9. The external folding hinge of claim 1 wherein said second support substrate has a planar surface for carrying a portion of the support layer; the second support guide rail is a guide rail with a circular arc track; the second support base plate and the second support rail are fixedly connected.

10. The external folding hinge of claim 1, wherein said second support member side connecting rail is a rail having a circular arc-shaped trajectory; the second base side connecting guide rail is a guide rail with a circular arc track; the second support member-side connecting rail and the second base-side connecting rail are fixedly coupled to each other.

11. The external folding hinge according to claim 1, wherein a central axis of the circular arc shaped trajectory of said second support member side connecting rail and a central axis of the circular arc shaped trajectory of said second base side connecting rail are parallel to each other and separated from each other by a proper distance; a center axis of the circular arc track of the second support member-side connecting rail is closer to the second support substrate than a center axis of the circular arc track of the second base-side connecting rail; accordingly, the central axis of the circular arc trajectory of the second base-side connecting rail is closer to the base screen supporting area than the central axis of the circular arc trajectory of the second support member-side connecting rail.

12. The external folding hinge of claim 1 wherein said second support rail and said second support member-side connecting rail are interfittably connected to each other; during the folding or unfolding of the second support member relative to the base, the second support rail slides relative to each other about its common axis along the second support member-side connecting rail.

13. The external folding hinge of claim 1 wherein said second base side connecting rail and said base second rail are interfittably connected to each other; the second base-side connecting rail relatively slides along the base second rail about its common axis during folding or unfolding of the second support member relative to the base.

Technical Field

The application relates to the technical field of mobile information terminals, in particular to an external folding hinge.

Background

Because large-screen mobile phones have obvious advantages in the visual and entertainment experience compared with small-screen mobile phones, the flagship mobile phone products of current mainstream manufacturers tend to be designed in a large-screen mode. However, a large-screen mobile phone has great disadvantages in terms of holding comfort and portability, and a small-screen mobile phone has great disadvantages. With the gradual commercialization of flexible display panels, foldable mobile phones are becoming the main direction for mobile phone development of mainstream equipment manufacturers due to the characteristic that the display panel can flexibly change the size in different use scenes. However, in the folding and unfolding processes, the flexible display panel is easily damaged due to jacking or squeezing, and the service life of the mobile phone is greatly shortened.

Disclosure of Invention

The technical problem to be solved by the embodiments of the present application is to provide an external folding hinge, where the external folding hinge is used for bearing a flexible display panel; when the display panel is folded, the outer arc radius of the outer folding hinge bearing the bending of the flexible display panel is controllably and moderately bent, the flexible display panel is protected from being pulled and extruded by external force in the folding and opening processes, and the damage of the flexible display panel caused by the over-small bending radius is avoided.

In addition, this application embodiment still on the basis of external folding hinge, provide a support tile and linkage assembly, support tile and linkage assembly can realize the mutual joint motion between two sets of slide rails, make the slip of the guide rail of intermediate junction component both sides go on simultaneously to support tile and linkage assembly can provide the support protection to flexible display panel.

In order to achieve the purpose, the invention adopts the following technical scheme:

the outer folding hinge is provided with a base, a first supporting member, a first middle connecting member, a first supporting tile and linkage member, a second supporting member, a second middle connecting member, a second supporting tile and linkage member and a supporting layer.

The base is provided with a base body, a base screen supporting area, a base first guide rail and a base second guide rail. The first guide rail of the base is a guide rail with a circular arc track; the second guide rail of the base is a guide rail with a circular arc track. The base support screen area is a support small table. The base support screen area, the base first guide rail and the base second guide rail are fixedly connected with the base body.

The first support member, the first intermediate connecting member, the first support shoe and the linkage member are arranged on one side of the base; correspondingly, the second supporting member, the second intermediate connecting member, the second supporting shoe and the linkage member are arranged on the other side of the base.

On one side of the base:

the first support member is provided with a first support base plate and a first support guide rail. The first supporting substrate is provided with a plane and a curved surface connected with the plane and is used for bearing one part of the supporting layer; the first support guide rail is a guide rail with a circular arc track. The first support base plate and the first support rail are fixedly connected.

The first intermediate connecting member is provided with a first supporting member side connecting guide rail and a first base side connecting guide rail. The first support member side connecting guide rail is a guide rail with a circular arc track; and setting the central axis of the circular arc track of the first support member side connecting guide rail as a first central axis. The first base side connecting guide rail is a guide rail with a circular arc track; and setting the central axis of the circular arc track of the first base side connecting guide rail as a second central axis. The first support member side connecting rail and the first base side connecting rail are fixedly connected to each other. The first central axis and the second central axis are parallel to each other and are separated from each other by a proper distance. The first central axis is closer to the first supporting base plate relative to the second central axis; correspondingly, the second central axis is closer to the base screen supporting area relative to the first central axis.

The first support rail and the first support member-side connecting rail are fitted and connected to each other. During the folding or unfolding of the first support member relative to the base, the first support rail slides relatively around its common axis (central axis one) along the first support member-side connecting rail, and the maximum angle of sliding is defined as a 1.

The first base side connecting guide rail and the base first guide rail are mutually embedded and connected. During the folding or unfolding of the first support member relative to the base, the first base-side connecting rail slides relatively along the base first rail about its common axis (central axis two), the maximum angle of sliding being defined as a 2.

The sum of the slide angle a1 and the slide angle a2 (i.e., the sum of a1+ a 2) is typically about 90 degrees.

And one side of the first support tile is connected with the first support component, and the other side of the first support tile is connected with the base and is used for bearing one part of the support layer.

Correspondingly, on the other side of the base:

the second support member is provided with a second support base plate and a second support guide rail. The second supporting substrate is provided with a plane and a curved surface connected with the plane and is used for bearing one part of the supporting layer; the second support guide rail is a guide rail with a circular arc track. The second support base plate and the second support rail are fixedly connected.

The second intermediate connecting member is provided with a second supporting member side connecting guide rail and a second base side connecting guide rail. The second supporting member side connecting guide rail is a guide rail with a circular arc track; and setting the central axis of the circular arc track of the second support member side connecting guide rail as a central axis four. The second base side connecting guide rail is a guide rail with a circular arc track; and setting the central axis of the circular arc track of the second base side connecting guide rail as a third central axis. The second support member-side connecting rail and the second base-side connecting rail are fixedly coupled to each other. The central axis four and the central axis three are parallel to each other and separated from each other by a proper distance. The central axis four is closer to the second support substrate than the central axis three; correspondingly, the central axis three is closer to the base screen supporting area relative to the central axis four.

The second support rail and the second support member-side connecting rail are fitted and connected to each other. During the folding or unfolding of the second support member relative to the base, the second support rail slides relatively around its common axis (center axis four) along the second support member-side connecting rail, the maximum angle of sliding being defined as a 3.

The second base side connecting guide rail and the base second guide rail are mutually embedded and connected. During the folding or unfolding of the second support member relative to the base, the second base-side connecting rail slides relatively along the base-second rail about its common axis (central axis three), the maximum angle of sliding being defined as a 4.

The sum of the slide angle a3 and the slide angle a4 (i.e., the sum of a3+ a 4) is typically about 90 degrees.

And one side of the second supporting tile is connected with the second supporting member, and the other side of the second supporting tile is connected with the base and is used for bearing one part of the supporting layer.

The supporting layer is used for bearing a flexible display panel, and is attached to the first supporting substrate, the base supporting screen area and the second supporting substrate. The supporting layer is made of elastic materials which are not easy to stretch and deform under pressure, such as elastic metal sheets and the like, so that the supporting layer can always keep a smooth surface in the deformation process, and the probability of damage of the flexible display panel is further reduced.

As can be understood, since the first support rail and the first support member-side connecting rail are fitted to each other, relatively slide around the common axial line (central axis line), and the rotation angle is relatively small (about 45 degrees), the bending radius to the flexible display panel is relatively large, and damage is not caused by pulling and pressing. Accordingly, since the first base-side connection rail and the base first rail are fitted to each other, relatively slide around the common axis line (central axis line two), and the rotation angle is relatively small (about 45 degrees), the bending radius of the flexible display panel is relatively large, and damage is not caused by pulling and pressing. On the other side of the base, since the second support rail and the second support member-side connecting rail are fitted and connected to each other, they slide relatively around the common axial line (central axis line four), and the turning angle is relatively small (about 45 degrees), the bending radius of the flexible display panel is relatively large, and it is not damaged by pulling or pressing. Accordingly, since the second base-side connection rail and the base second rail are fitted and connected to each other, relatively slide around the common axis line (the central axis line three), and the rotation angle is relatively small (about 45 degrees), the bending radius of the flexible display panel is relatively large, and damage is not caused by pulling and pressing.

It can be understood that, by adopting the technical scheme, the folding quantity of the external folding hinge needing to be bent by 180 degrees is divided into a left part and a right part (each 90 degrees), the two parts have less mutual interference and can rotate relatively independently.

As the two sets of arc-shaped guide rails with mutually separated track axial leads are innovatively utilized, the rotation amount of about 90 degrees can be divided into about two rotation amounts of about 45 degrees, and the supporting layer for attaching the flexible display panel can be well supported in the bending process through the conventional calculation design without being pulled and extruded. The flexible display panel has display and touch functions at the same time.

Description of the drawings:

in order to more clearly illustrate the technical solution of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other embodiments having the same spirit as the present invention can be obtained by using the drawings without any inventive work.

Fig. 1 is a schematic structural view of an external folding hinge (connected by a four-segment combination) provided by an embodiment of the application when the external folding hinge is opened.

Fig. 2 is a schematic structural diagram of an external folding hinge (a section) provided by an embodiment of the present application when the external folding hinge is opened after a support layer and a flexible display panel are removed.

FIG. 3 is a schematic view of the embodiment of FIG. 2 with a portion removed and the structure opened.

Fig. 4 is a schematic structural view of the folded state of the embodiment of fig. 2.

Fig. 5 is a schematic structural diagram of the base of the embodiment in fig. 2.

Fig. 6 is a schematic structural view of a first intermediate connecting member of the embodiment of fig. 2.

Fig. 7 is a schematic structural view of the first support member of the embodiment of fig. 2.

Fig. 8 is a schematic structural view (another side view) of the first support member of the embodiment of fig. 2.

Fig. 9 is a schematic structural view of the first support shoe and the linkage member of the embodiment of fig. 2.

Fig. 10 is a schematic view of the first support shoe and linkage member of the embodiment of fig. 2 (bottom view).

The specific implementation mode is as follows:

embodiments of the present application are described below with reference to the accompanying drawings.

In the figure, 1, a base; 11. a base body; 12. a base screen support area; 13. a base first guide rail; 14. a base second guide rail; 2. a first support member; 21. a first support substrate; 22. a first support rail; 3. a second support member; 31. a second support substrate; 32. a second support rail; 4. a first intermediate connecting member; 41. the first supporting member side is connected with the guide rail; 42. the first base side is connected with a guide rail; 5. a second intermediate connecting member; 51. the second supporting member side is connected with the guide rail; 52. the side of the second base is connected with a guide rail; 6. a first support shoe and a linkage member; 61. a support tile main body A; 62. a connecting part A; 63. a connecting part B; 64. a linear sliding column A; 65. supporting a linkage guide rail A; 66. the base is linked with the guide rail A; 67. a linear slide hole A; 68. supporting the linkage slide hole A; 69. the base is linked with the slide hole A; 7. a second support shoe and linkage member; 71. a support tile body C; 72. a connecting part C; 73. a connecting part D; 74. a linear sliding column C; 75. supporting a linkage guide rail C; 76. a base linkage guide rail C; 77. a linear slide hole C; 78. supporting the linkage slide hole C; 79. the base is linked with the sliding hole C; 81. a support layer and a flexible display panel; 82. a first central axis; 83. a central axis II; 84. a central axis III; 85. and the central axis is four.

Please refer to fig. 1 to 8.

The outer folding hinge is provided with a base 1, a first support member 2, a first intermediate connecting member 4, a first support tile and linkage member 6, a second support member 3, a second intermediate connecting member 5, a second support tile and linkage member 7, a support layer and a flexible display panel 81.

The base 1 is provided with the base body 11, the base screen supporting area 12, the base first guide rail 13 and the base second guide rail 14. The first base guide rail 13 and the second base guide rail 14 are both guide rails having a circular arc-shaped track. The base support screen area 12 is a support table. The base screen supporting area 12, the base first guide rail 13, and the base second guide rail 14 are fixedly connected to the base body 11.

The first supporting member 2, the first intermediate connecting member 4, the first supporting tile and the linkage member 6 are arranged on one side of the base 1; correspondingly, the second supporting member 3, the second intermediate connecting member 5, the second supporting shoe and the linking member 7 are provided on the other side of the base 1.

On one side of the base 1:

the first support member 2 is provided with the first support base plate 21 and the first support rail 22. The first supporting substrate 21 has a plane and a curved surface connected to the plane for supporting a part of the supporting layer; the first support rail 22 is a rail having a circular arc-shaped trajectory. The first support base plate 21 and the first support rail 22 are coupled and fixed.

The first intermediate connecting member 4 provided with the first support member-side connecting rail 41 and the first base-side connecting rail 42; the first support member side connecting guide rail 41 is a guide rail having a circular arc-shaped trajectory; the center axis of the circular arc trajectory of the first support member side connecting rail 41 is set to the first center axis 82. The first base-side connecting guide rail 42 is a guide rail having a circular arc-shaped trajectory; the center axis of the circular arc trajectory of the first base-side connecting rail 42 is set to the second center axis 83. The first support member side connecting rail 41 and the first base side connecting rail 42 are coupled and fixed to each other. The first central axis 82 and the second central axis 83 are parallel to each other and separated from each other by a proper distance. The first central axis 82 is closer to the first support base 21 than the second central axis 83; accordingly, the second central axis 83 is closer to the base support region 12 than the first central axis 82.

The first support rail 22 and the first support member-side connecting rail 41 are fitted and connected to each other. During the folding or unfolding of the first support member 2 relative to the base 1, the first support rail 22 slides relatively along the first support member-side connecting rail 41 about its common axis (central axis one 82), and the maximum angle of sliding is defined as a 1.

The first base-side connecting rail 42 and the base first guide 13 are fitted and connected to each other. During the folding or unfolding of the first support member 2 relative to the base 1, the first base-side connecting rail 42 slides relatively along the base first rail 13 about its common axis (central axis two 83), the maximum angle of sliding being defined as a 2.

The sum of the slide angle a1 and the slide angle a2 (i.e., the sum of a1+ a 2) is typically about 90 degrees.

The first support tile is connected to the linkage member 6, and one side of the first support tile is connected to the first support member 2, and the other side of the first support tile is connected to the base 1, for supporting the support layer and a portion of the flexible display panel 81.

Correspondingly, on the other side of the base:

the structure and mutual linkage relationship of the base second guide rail 14, the second support member 3, the second intermediate connecting member 5, the second support tile and the linkage member 7 are similar to those of the base first guide rail 13, the first support member 2, the first intermediate connecting member 4, the first support tile and the linkage member 6, and the description thereof is omitted.

A flexible display panel is attached to the support layer. The support layer is sequentially attached to the first support substrate 21, the support tile main body a 61, the substrate support screen area 12, the support tile main body C71 and the second support substrate 31. The flexible display panel has both display and touch functions.

It is understood that, in the above-described embodiment, since the first support rail 22 and the first support member side connecting rail 41 are fitted and connected to each other, and relatively slide around the common axis line (the first central axis 82), and the rotation angle is relatively small (about 45 degrees), the bending radius of the flexible display panel is relatively large, and damage is not caused by pulling or pressing. Accordingly, since the first base-side connection rail 42 and the base first rail 13 are fitted and connected to each other, relatively slide around the common axis line (the second central axis 83), and the rotation angle is relatively small (about 45 degrees), the bending radius of the flexible display panel is relatively large, and damage is not caused by pulling and pressing. On the other side of the base 1, since the second support rail 32 and the second support member side connection rail 51 are fitted and connected to each other, relatively slide around the common axial line (the central axis line four 85), and the rotation angle is relatively small (about 45 degrees), the bending radius of the flexible display panel is relatively large, and damage is not caused by pulling and pressing. Accordingly, since the second base-side connection rail 52 and the base second rail 14 are fitted to each other, relatively slide around the common axis line (the central axis line three 84), and the rotation angle is relatively small (about 45 degrees), the bending radius of the flexible display panel is relatively large, and damage is not caused by pulling and pressing.

It can be understood that, by adopting the technical scheme, the folding quantity of the external folding hinge needing to be bent by 180 degrees is divided into a left part and a right part (each 90 degrees), the two parts have less mutual interference and can rotate relatively independently.

Due to the fact that two sets of arc-shaped guide rails with mutually separated track axial leads are innovatively utilized, the rotation amount of about 90 degrees can be divided into two rotation amounts of about 45 degrees, and technical personnel in the field can realize that the supporting layer for attaching the flexible display panel is well supported in the bending process without being pulled and extruded through conventional calculation design. Those skilled in the art can make corresponding changes to the technical solution without departing from the spirit of the invention.

The following provides a support shoe and linkage assembly based on the above invention. Please refer to fig. 9-10.

A support shoe and linkage assembly comprising: the first support shoe and linkage member 6, the support linkage guide rail a65, the base linkage guide rail a 66, the linear slide hole a 67, the second support shoe and linkage member 7, the support linkage guide rail C75, the base linkage guide rail C76, and the linear slide hole C77.

The first support shoe and linkage member 6 includes the support shoe main body a 61, the connecting portion a 62, the connecting portion B63, and the linear slide a 64.

The supporting linkage guide rail A65 is a guide rail with an arc track; the support interlocking guide a65 is provided on the first support base plate 21, and is close to the first support shoe and the interlocking member 6.

The base linkage guide rail A66 is a guide rail with an arc track; the base linkage guide rail a 66 is disposed in the base support screen area 12 and is proximate to the first support shoe and linkage member 6.

The connecting portion a 62 has a raised cylinder. The column of the connecting part a 62 is inserted into the supporting and interlocking slide hole a 68 of the supporting and interlocking rail a 65.

The connecting part B63 is provided with a column projection. The column of the connecting part B63 is fitted into the base interlocking slide hole a 69 of the base interlocking guide rail a 66.

The linear sliding hole A67 is a circular hole with a linear track; the linear slide hole a 67 is located on the first intermediate connecting member 4.

The linear sliding column a 64 is a cylinder, which is protruded from the supporting tile main body a 61. The linear sliding column A64 extends into the linear sliding hole A67.

When the first support member 2 is folded or unfolded with respect to the base 1, the cylinder of the link portion a 62 slides back and forth in the support link rail a65, the cylinder of the link portion B63 slides back and forth in the base link rail a 66, and the linear slide column a 64 slides back and forth linearly in the linear slide hole a 67.

Correspondingly, the structures and the mutual linkage relations of the second supporting shoe and the linkage member 7, the supporting linkage guide rail C75, the base linkage guide rail C76 and the linear slide hole C77 are similar to those of the first supporting shoe and the linkage member 6, the supporting linkage guide rail a65, the base linkage guide rail a 66 and the linear slide hole a 67, and the description thereof is omitted.

It can be understood that, with the above-mentioned solution of the support shoe and linkage assembly, the first support rail 22 can slide relatively around its common axis line with respect to the first support member side connecting 41 rail during the folding or unfolding of the first support member 2 with respect to the base 1; at the same time, the first base-side connecting rail 42 is slid relative to the base first rail 13 about its common axis by the connection and motion transmission of the first support shoe to the linkage member 6. Similarly, with the above-mentioned supporting shoe and linkage assembly solution, the second supporting rail 32 can slide relatively around its common axis line with respect to the second supporting member side connecting 51 rail during the process of folding or unfolding the second supporting member 3 with respect to the base 1; at the same time, the second base-side connecting rail 52 is slid relative to the base second rail 14 about its common axis line by the connection and motion transmission of the second support shoe to the interlocking member 7.

The external folding hinge of the invention also comprises a limiting device to limit the opening angle and the position of the sliding guide rail. The technical scheme of the limiting device can be that four relatively independent limiting devices are respectively arranged between the first supporting member and the first intermediate connecting member, between the first intermediate connecting member and the base, between the second supporting member and the second intermediate connecting member and between the second intermediate connecting member and the base. The two independent limiting devices can be arranged between the base and the first supporting member and between the base and the second supporting member, and double-side linkage can be realized through a linkage member. Those skilled in the art can make corresponding changes to the technical solution without departing from the spirit of the invention.

The application range of the external folding hinge, the support tile and the linkage assembly is in the technical field of mobile terminals, and the application range includes but is not limited to mobile phones, notebooks, tablet computers, POS machines, vehicle-mounted computers, cameras and the like.

The foregoing detailed description of the embodiments of the present application has been presented to further illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and its core ideas of the present application; also, it will be apparent to those skilled in the art that variations may be made in the embodiments and applications without departing from the spirit and scope of the disclosure. This summary should not be construed to limit the present application.